Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 15 of 15

Thread: Pool pump motor fries / burns within 10 seconds.

  1. Back To Top    #1

    Join Date
    Mar 2017
    Location
    san diego
    Posts
    17

    Pool pump motor fries / burns within 10 seconds.

    After moving into my house and using the pool for 11 months. All three pumps died on the same day. Pump for pool, water features and spa. I called out the home warranty place and they brought out a new pump for the pool, connected it and it fired (assuming Capacitor blew). Now he left, i went back there and checked the voltage on the lines in and out and it measured properly (110v x 2 so 220). He came back today with a brand new pump (last one was a refurb). Connected it and according to him this one actually burned up where the circuit board in the back is visibly burned after having it on for 10 seconds.

    When I think about it, how did all three motors die initially at the same time and now two replacements. He is at a lost even though he is the pro. What can I do while I am waiting, I doubt Home Warranty place will contiue to provide motors after the next one. And they likely will refuse to work on electrical.

  2. Back To Top    #2

    Re: Pool pump motor fries / burns within 10 seconds.

    You can't just check each line to ground and then add them together. You have to check line to line with no load and under load.

    I recommend that you get an electrician to check your power supply.
    Support the site

    Trouble Free Pool is a free resource. The people who answer questions are volunteers. If you find the site to be a good resource, please consider making a donation to help support the site. Thanks.

  3. Back To Top    #3
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    24,974

    Re: Pool pump motor fries / burns within 10 seconds.

    Welcome to TFP!

    There is clearly an electrical problem either at the main panel or the pool sub panel if there is one. I don't know if home warranties cover electrical, but I don't see why it wouldn't. An electrician is definitely needed from in this case to troubleshoot the problem.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  4. Back To Top    #4
    Mod Squad kimkats's Avatar
    Join Date
    Jul 2012
    Location
    Tallahassee, FL
    Posts
    33,916

    Re: Pool pump motor fries / burns within 10 seconds.

    While you are waiting to find the fix you can use a submersible pump to help move the water. Harbor Freight has some around $60 or so.

    Good luck finding the problem. That sounds scary!

    Kim
    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

  5. Back To Top    #5

    Join Date
    Mar 2017
    Location
    san diego
    Posts
    17

    Re: Pool pump motor fries / burns within 10 seconds.

    When I tested I tested the lines disconnected at teh motor tying both lines together it measured apporpriatly, without load. when measured seperatly tied to ground they were also right. At the sub pannel/computer testing the relay it was also correct. But again without load since I can't make a load without blowing the motor apparently?

    Can this be caused by something else perhaps a clog in the line? that caused all motors to blow or is that absurd? Could this be a bad relay? I guess that would imply three bad relays which makes no sense.

    I can call an electrician if needed but wanted to know if there was any DIY I could do first or at least what to have the electrician focus on.


    Thanks again!

  6. Back To Top    #6
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,326

    Re: Pool pump motor fries / burns within 10 seconds.

    Anything that was wrong with the motor or pump would trip a breaker. This is a significant power problem. Something like a missing neutral at the transformer. I'd call your power company and tell them what has happened. Anything else in your home that is 240?
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  7. Back To Top    #7

    Join Date
    Mar 2017
    Location
    san diego
    Posts
    17

    Re: Pool pump motor fries / burns within 10 seconds.

    Oven is 220 and I use it regularly. AC is 220 but I have not used it recently out here in San Diego. The only thing that changed recently was there were heavy rains but I cant connect the two events in my head. Will call the power company but how would a neutral go missing all of a sudden. Everything has worked for the last year and assumbly the 14 years prior to me buying the house as the pumps/motors look about that in age.

  8. Back To Top    #8
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,326

    Re: Pool pump motor fries / burns within 10 seconds.

    I think I would not turn the AC on until you figure out what is going on.

    In some wiring configurations, if the neutral wire is broken an imbalanced load on the phases can cause one of them to increase in voltage.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  9. Back To Top    #9

    Re: Pool pump motor fries / burns within 10 seconds.

    Probably need to get an electrician as soon as possible.
    Support the site

    Trouble Free Pool is a free resource. The people who answer questions are volunteers. If you find the site to be a good resource, please consider making a donation to help support the site. Thanks.

  10. Back To Top    #10
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    24,974

    Re: Pool pump motor fries / burns within 10 seconds.

    Yes, I had a broken neutral in my main panel that somehow caused voltage spikes/drops in our shop building sub panel and carport sub panel that caused intermittent spikes to 150-160v on one leg and drops to 70-80 on the other leg. It was very weird. The only thing it fried was a 110v ryobi battery charger and I had intermittent errors on one of the 240v car chargers. Electrician found it and fixed it in about 10 minutes.
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  11. Back To Top    #11

    In the Industry

    Join Date
    Feb 2017
    Location
    laguna hills , ca
    Posts
    37

    Re: Pool pump motor fries / burns within 10 seconds.

    a neutral is not used in 220 vac configurations , don't know what hp your motors are however in the lower
    hp motors 1/2 - 1.0 most can be switched to operate from 120 vac to 240 vac , perhaps the motor they installed was switched to run 120 vac , them connecting to your 220 - 240 vac fried it ? at least the capacitor
    on another issue i don't subscribe to " used = reconditioned motors "

  12. Back To Top    #12
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,326

    Re: Pool pump motor fries / burns within 10 seconds.

    Quote Originally Posted by stevie3x View Post
    a neutral is not used in 220 vac configurations , don't know what hp your motors are however in the lower
    hp motors 1/2 - 1.0 most can be switched to operate from 120 vac to 240 vac , perhaps the motor they installed was switched to run 120 vac , them connecting to your 220 - 240 vac fried it ? at least the capacitor
    on another issue i don't subscribe to " used = reconditioned motors "
    Even though the neutral isn't used on the circuit, a neutral problem can cause serious voltage oddities on circuits using both phases.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  13. Back To Top    #13
    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    Location
    DFW, TX
    Posts
    24,974

    Re: Pool pump motor fries / burns within 10 seconds.

    True that!
    TFP Moderator
    If TFP helped you or saved you money - Become a TFP Supporter! <--Click here
    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

  14. Back To Top    #14
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,326

    Re: Pool pump motor fries / burns within 10 seconds.

    Any resolution to your problem?
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  15. Back To Top    #15

    Join Date
    Aug 2016
    Location
    Riverside, CA
    Posts
    378

    Re: Pool pump motor fries / burns within 10 seconds.

    No kidding. It is nice for the community to know what the outcome was.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •